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Finding the Fourth Proportional to 321,545.60, 482,046.24 and 121,755.86

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Solution

The fourth proportional to 321,545.60, 482,046.24 and 121,755.86 is: 182,530.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,545.60 : 482,046.24 = 121,755.86 : x
  2. Step 2: Convert to fraction form
    321,545.60/482,046.24 = 121,755.86/x
  3. Step 3: Cross multiply
    321,545.60x = 482,046.24 × 121,755.86
  4. Step 4: Simplify right side
    321,545.60x = 58,691,954,510.97
  5. Step 5: Solve for x
    x = 58,691,954,510.97/321,545.60
  6. Step 6: Final answer
    x = 182,530.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.